Publications

2022

Articles

Sachihiko Itoh, Eisuke Tsutsumi, Eiji Masunaga, Takashi Sakamoto, Kazuo Ishikawa, Daigo Yanagimoto, Yasuhiro Hoshiba, Hitoshi Kaneko, Daisuke Hasegawa, Kiyoshi Tanaka, Hideki Fukuda, Toshi Nagata, 2022: Seasonal Cycle of the Confluence of the Tsugaru Warm, Oyashio, and Kuroshio Currents East of Japan. Journal of Geophysical Research: Oceans, 127, 10.1029/2022jc018556.

Takahiro Tanaka, Daisuke Hasegawa, Takeshi Okunishi, Ichiro Yasuda, T. P. Welch, 2022: In-situ calibration of underwater glider flight model using acoustic Doppler current profilers. Journal of Atmospheric and Oceanic Technology, 10.1175/jtech-d-21-0074.1.

Daigo Yanagimoto, Masatoshi Miyamoto, Eitarou Oka, Toshiya Nakano, Yasushi Takatsuki, Hiroyuki Tsujino, 2022: Abyssal current and water mass in the Main Gap and an adjacent Small Gap of the Emperor Seamount Chain. Journal of Oceanography, 10.1007/s10872-022-00639-4.

2021

Articles

Hatsumi Nishikawa, Humio Mitsudera, Takeshi Okunishi, Shin-ichi Ito, Taku Wagawa, Daisuke Hasegawa, Toru Miyama, Hitoshi Kaneko, Ren-Chieh Lien, 2021: Surface water pathways in the subtropical-subarctic frontal zone of the western North Pacific. Progress in Oceanography, 199, pp. 102691, 10.1016/j.pocean.2021.102691.

Jun Nishioka, Toru Hirawake, Daiki Nomura, Youhei Yamashita, Kazuya Ono, Aiko Murayama, Alexey Shcherbinin, Yuri N. Volkov, Humio Mitsudera, Naoto Ebuchi, Masaaki Wakatsuchi, Ichiro Yasuda, 2021: Iron and nutrient dynamics along the East Kamchatka Current, western Bering Sea Basin and Gulf of Anadyr. Progress in Oceanography, 198, pp. 102662, 10.1016/j.pocean.2021.102662.

Eitarou Oka, Hatsumi Nishikawa, Shusaku Sugimoto, Bo Qiu, Niklas Schneider, 2021: Subtropical Mode Water in a recent persisting Kuroshio large-meander period: part I—formation and advection over the entire distribution region. Journal of Oceanography, 77, pp. 781–795, 10.1007/s10872-021-00608-3.

Daiki Ito, Toshio Suga, Shinya Kouketsu, Eitarou Oka, Yoshimi Kawai, 2021: Spatiotemporal evolution of submesoscale filaments at the periphery of an anticyclonic mesoscale eddy north of the Kuroshio Extension. Journal of Oceanography, 77, pp. 763-780, 10.1007/s10872-021-00607-4.

Jun Nishioka, Hajime Obata, Toru Hirawake, Yoshiko Kondo, Youhei Yamashita, Kazuhiro Misumi, Ichiro Yasuda, 2021: A review: iron and nutrient supply in the subarctic Pacific and its impact on phytoplankton production. Journal of Oceanography, 77, pp. 561-587, 10.1007/s10872-021-00606-5.

Mamoru Tanaka, Jiro Yoshida, Keunjong Lee, Yasutaka Goto, Takahiro Tanaka, Hiromichi Ueno, Hiroji Onishi, Ichiro Yasuda, 2021: The potential role of thermohaline-shear instability in turbulence production in the Bering Sea and the subarctic North Pacific. Journal of Oceanography, 77, pp. 431-446, 10.1007/s10872-021-00602-9.

Ryo Dobashi, Hiromichi Ueno, Yuki Okada, Takahiro Tanaka, Jun Nishioka, Toru Hirawake, Atushi Ooki, Sachihiko Itoh, Daisuke Hasegawa, Yoshikazu Sasai, Hideharu Sasaki, Ichiro Yasuda, 2021: Observations of anticyclonic eddies in the western subarctic North Pacific. Journal of Oceanography, 77, pp. 229--242, 10.1007/s10872-020-00586-y.

Masaki Hamamoto, Ichiro Yasuda, 2021: Synchronized interdecadal variations behind regime shifts in the Pacific Decadal Oscillation. Journal of Oceanography, 10.1007/s10872-021-00592-8.

Youhei Yamashita, Tetsu Tosaka, Rise Bamba, Ryuichi Kamezaki, Shuji Goto, Jun Nishioka, Ichiro Yasuda, Toru Hirawake, Joji Oida, Hajime Obata, Hiroshi Ogawa, 2021: Widespread distribution of allochthonous fluorescent dissolved organic matter in the intermediate water of the North Pacific. Progress in Oceanography, 191, pp. 102510, 10.1016/j.pocean.2020.102510.

Takahiro Tanaka, Daisuke Hasegawa, Ichiro Yasuda, Daigo Yanagimoto, Shinzou Fujio, Hirohiko Nakamura, Ryuichiro Inoue, Jun Nishioka, 2021: Enhanced vertical turbulent nitrate flux in the intermediate layer of the Kuroshio in the Tokara Strait. Journal of Oceanography, 10.1007/s10872-020-00581-3.

Ichiro Yasuda, Shinzou Fujio, Daigo Yanagimoto, KeungJong Lee, Yusuke Sasaki, Shuo Zhai, Mamoru Tanaka, Sachihiko Itoh, Takahiro Tanaka, Daisuke Hasegawa, Yasutaka Goto, Daisuke Sasano, 2021: Estimate of turbulent energy dissipation rate using free-fall and {CTD}-attached fast-response thermistors in weak ocean turbulence. Journal of Oceanography, 10.1007/s10872-020-00574-2.

Sachihiko Itoh, Hitoshi Kaneko, Shinya Kouketsu, Takeshi Okunishi, Eisuke Tsutsumi, Hiroshi Ogawa, Ichiro Yasuda, 2021: Vertical eddy diffusivity in the subsurface pycnocline across the Pacific. Journal of Oceanography, 10.1007/s10872-020-00589-9.

Hitoshi Kaneko, Ichiro Yasuda, Sachihiko Itoh, Shin-ichi Ito, 2021: Vertical turbulent nitrate flux from direct measurements in the western subarctic and subtropical gyres of the North Pacific. Journal of Oceanography, 10.1007/s10872-020-00576-0.

Yasutaka Goto, Ichiro Yasuda, Maki Nagasawa, Shinya Kouketsu, Toshiya Nakano, 2021: Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using {CTD}-attached thermistor measurements. Scientific Reports, 11, 10.1038/s41598-020-80029-2.

Sachihiko Itoh, Hitoshi Kaneko, Shinya Kouketsu, Takeshi Okunishi, Eisuke Tsutsumi, Hiroshi Ogawa, Ichiro Yasuda, 2021: Vertical eddy diffusivity in the subsurface pycnocline across the Pacific. Journal of Oceanography, 77, pp. 185--197, 10.1007/s10872-020-00589-9.

2020

Articles

Eisuke Tsutsumi, Takeshi Matsuno, Sachihiko Itoh, Jing Zhang, Tomoharu Senjyu, Akie Sakai, Keunjong Lee, Daigo Yanagimoto, Ichiro Yasuda, Hiroshi Ogawa, Cesar Villanoy, 2020: Vertical fluxes of nutrients enhanced by strong turbulence and phytoplankton bloom around the ocean ridge in the Luzon Strait. Scientific Reports, 10, 10.1038/s41598-020-74938-5.

Yusuke Kawaguchi, Jun Nishioka, Shigeto Nishino, Shinzou Fujio, Keunjong Lee, Amane Fujiwara, Daigo Yanagimoto, Humio Mitsudera, Ichiro Yasuda, 2020: Cold Water Upwelling Near the Anadyr Strait: Observations and Simulations. Journal of Geophysical Research: Oceans, 125, 10.1029/2020jc016238.

Ichiro Yasuda, Shuhei Masuda, Jun Nishioka, Xinyu Guo, Naomi Harada, Shin-ichi Ito, Toshiyuki Hibiya, Hiroyasu Hasumi, 2020: Ocean mixing processes ({OMIX}): impact on biogeochemistry, climate and ecosystem. Journal of Oceanography, 10.1007/s10872-020-00578-y.

Bo Qiu, Shuiming Chen, Niklas Schneider, Eitarou Oka, Shusaku Sugimoto, 2020: On the Reset of the Wind-Forced Decadal Kuroshio Extension Variability in Late 2017. Journal of Climate, 33, pp. 10813-10828, 10.1175/JCLI-D-20-0237.1.

Masatoshi Miyamoto, Eitarou Oka, Daigo Yanagimoto, Shinzou Fujio, Maki Nagasawa, Genta Mizuta, Shiro Imawaki, Masao Kurogi, Hiroyasu Hasumi, 2020: Topographic Rossby Waves at Two Different Periods in the Northwest Pacific Basin. Journal of Physical Oceanography, 50, pp. 3123--3139, 10.1175/jpo-d-19-0314.1.

Hans van Haren, Hiroshi Uchida, Daigo Yanagimoto, 2020: Further correcting pressure effects on {SBE}911 {CTD}-conductivity data from hadal depths. Journal of Oceanography, 10.1007/s10872-020-00565-3.

Ryuichiro Inoue, Takahiro Tanaka, Hirohiko Nakamura, Daigo Yanagimoto, Shinzou Fujio, Ichiro Yasuda, 2020: Microstructure and Mooring Observations of Enhanced Mixing in the Kerama Gap. Journal of Geophysical Research: Oceans, 125, 10.1029/2019jc015553.

Jun Nishioka, Hajime Obata, Hiroshi Ogawa, Kazuya Ono, Youhei Yamashita, Keunjong Lee, Shigenobu Takeda, Ichiro Yasuda, 2020: Subpolar marginal seas fuel the North Pacific through the intermediate water at the termination of the ocean circulation. Proceedings of the National Academy of Sciences of the United States of America, 117, pp. 12665-12673, 10.1073/pnas.2000658117.

Eitarou Oka, Shinya Kouketsu, Daigo Yanagimoto, Daiki Ito, Yoshimi Kawai, Shusaku Sugimoto, Bo Qiu, 2020: Formation of Central Mode Water based on two zonal hydrographic sections in spring 2013 and 2016. Journal of Oceanography, 76, pp. 373--388, 10.1007/s10872-020-00551-9.

Michael J. Miller, Sachihiko Itoh, Shun Watanabe, Akira Shinoda, Toshiro Saruwatari, Katsumi Tsukamoto, Ichiro Yasuda, 2020: Distribution of leptocephali and wintertime hydrographic structure in the Kuroshio Extension and northern subtropical gyre. Deep Sea Research Part I: Oceanographic Research Papers, 159, pp. 103240, 10.1016/j.dsr.2020.103240.